In a landscape where oil and gas fields in the Russian Federation are nearing the end of their productive life, the challenge of managing increased water cut in hydrocarbon extraction has become critical. A recent study led by Olga V. Savenok from the Saint Petersburg Mining University offers a promising solution to this pressing issue, focusing on enhancing the efficiency of horizontal wells in low-permeability terrigenous reservoirs.
The research, published in ‘Известия Томского политехнического университета: Инжиниринг георесурсов’ (Proceedings of Tomsk Polytechnic University: Engineering of Georesources), delves into the technical and geological reasons behind the rising water cut, which can soar to an alarming 98-99% in some fields. This phenomenon not only escalates the cost of production but also exacerbates equipment failures due to corrosion and the formation of stubborn oil-water emulsions. “We are at a critical juncture where the profitability of extraction is severely threatened,” Savenok noted. “Our findings aim to provide a pathway to mitigate these challenges.”
The study identifies gel-forming compositions as the most effective method for limiting water inflow into horizontal wells. Through advanced modeling techniques using the tNavigator software, Savenok and her team compared various development scenarios, ultimately developing a methodology for selecting candidate wells for waterproofing work. This innovative approach is implemented in a user-friendly computer program written in Python, making it accessible for a broad range of domestic oil and gas companies.
The implications of this research extend beyond technical advancements; they are poised to reshape the commercial landscape of hydrocarbon production. By effectively managing water cut, companies can reduce operational costs, enhance equipment longevity, and ultimately improve their bottom line. As Savenok emphasizes, “The ability to isolate water inflow not only preserves resources but also enhances the overall efficiency of production operations.”
This research is a significant step forward in addressing the operational challenges faced by the oil and gas sector, particularly in the context of horizontal wells, which are notoriously complex and costly to manage. As the industry continues to grapple with declining production rates and increasing costs, the methodologies developed by Savenok and her team could serve as a vital tool for companies aiming to sustain profitability and operational efficiency in a challenging environment.
Published insights like these are essential as they provide actionable solutions to industry-wide problems, ensuring that the construction and oil sectors can adapt and thrive amidst changing conditions.
